The Claim

In a 65-year-old woman diagnosed with Wallenberg syndrome, diffusion-weighted MRI failed to detect a lateral medullary infarct on two scans conducted within 8 hours of symptom onset, and the lesion was only visualized on a third MRI performed five days after symptom onset.

Source: A Case of Wallenberg Syndrome Presenting With Thunderclap Headache and Delayed Diagnosis Due to Negative Findings on Two MRI Examinations

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
24score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Description
1 study reviewed
In plain English

A 65-year-old woman had a stroke in her brainstem, but the first two MRI scans didn’t show it—doctors only saw the damage after waiting five days.

See the scientific wording

In a 65-year-old woman with Wallenberg syndrome, diffusion-weighted MRI failed to detect a lateral medullary infarct on two scans performed within 8 hours of symptom onset, with the lesion only becoming visible on a third MRI performed five days after onset.

What the research says

1 study

  1. Study: A Case of Wallenberg Syndrome Presenting With Thunderclap Headache and Delayed Diagnosis Due to Negative Findings on Two MRI Examinations

    The study shows that a 65-year-old woman had a stroke in her brainstem, but two MRI scans done soon after her symptoms didn’t show it — only a later scan did. This proves that early MRIs can miss this kind of stroke, just like the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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